Printing-telegraph receiver



(No Model.) 3 SheetsSheet 1..

. M. D. PORTER. PRINTING TELEGRAPH REGBIVBR.

No. 491,133. Patented Feb. '7, 1893.

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4 TH: NORfiIS PETERS co. moroumou WASHINGTON n. c.

3 Sheets-Sheet 2.

(No Model.)

M. D. PORTER. PRINTING TELEGRAPH REGEIVER.

Patented Feb. 7, -1893.

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(No Model.) 3 Sheets-Sheet 3.

M. D. PORTER.- PRINTING TELEGRAPH RECEIVER.

No. 491,133.; Pateniqd. Feb. 7,1893;

AT TEST I INVENTUFII M l fcym", 300w Poi-tel" Tm: NORRIS Parana 00wo'roumm. wAsnmcTou, v.1:v

UN TE STATES PATENT OFFICE.

MAJOR DANE PORTER, OF BROOKLYN, NEW YORK, ASSIGNOR To THE NATIONALTIOKER OOMPANY, OF wEsT VIRGINIA.

PRlNTlNG-TELEG RAPH RECEIVER.

SPECIFICATION forming part of Letters Patent No. 491,133, dated February7, 1893.

Application filed December 10, 1891. $erial No. 414,573. (No model.)

To all whom it may concern.-

Be it known that I, MAJOR DANE PORTER, a citizen of the Dominion ofOanada,and a resident of Brooklyn, in the county of Kings and State ofNew York, have invented a certainnew and useful Printing-TelegraphReceiver, of which the following is a specification.

My invention relates to the construction of printing telegraph receivinginstruments and is designed to furnish a simple, effective and cheaporganization of apparatus whereby an impression may be effected fromeither one of two type wheels bearing respectively letter and figuretype as in stock printers or tickers. Another object of my invention isto provide an instrument by which reports may be printed with rapidityovera single line circuit.

To these ends my invention consists in the novel organizations andcombinations of apparatus hereinafter described and then specified inthe claims.

A further object of my invention is to dispense with the necessity ofwinding up a spring or weight by hand in those stock printers whereinthe type wheel is subjected to the constant action of a power tending torotate it.

In the accompanying drawingsz-Figure 1, is a side elevation of thedevices with the supporting side plate removed and all parts connectedtherewith remaining intact in the figure. Fig. 2, is a plan view. Fig.3, is a detached view of the spring winding mechanism. Fig. 4, is adetail View of the winding lever. Fig. 5, is a detail view of thebifurcated armature. Fig. 6, is a detail view of the friction wheels.Fig. 7, represents a plan view of the pads connected with the presslever. Fig. 8, is a diagram. Fig. 9, is an end elevation of the machine,parts being broken away to show the polarized armature and devicecontrolled by the position thereof. Fig. 10, shows in enlarged detailview the connections of the winding spring, the shaft supporting thewheels being seen in side view. Fig. 11, is a perspective view of theshifting device for the press pad detached from the remaining'parts.

A, A, indicate the two type wheels which may be formed separately orintegral with one another, as desired, but are properly mounted so as torotate together by attachsign to one of said wheels the letters of thealphabet and to the other numbers and other characters. The wheels aredriven by a wheel B, which gears with the wheel upon the shaft a,or isotherwise connected to the type wheel and is itself impelled or actuatedby a spring or weight as will be presently described.

C, is a vibratory escapement lever carrying the usual escapement 0 thatengages'with an escapement wheel 0 connected to the type wheels andallows a movement thereof step by step as well understood in the art.When the escapement lever stands atone extrerne of its vibration,,a typeof the wheel A,

will be in position for printing while, when it stands in the otherposition, a type of the other wheel will be in position for printing."

The, escapement lever O, is vibrated by means of reversed or alternatingcurrents transmitted over the line from the transmitting instruments andmade to circulate in the coils of the electro-magnets D, D The polarizedreceiving magnet which produces the vibrations in the lever O, is madeup of said magnets D, D and a piece of steel permanently magnetized andconsisting of a U shaped piece shown in edge View in Fig. 5, and in sideelevation in Fig. 9, which permanently magnetized piece of steelitselfpreferably constitutes the vibratory lever O. The lever is pivoted atthe points 0, and its two terminals are respectively north and south andare acted upon by the poles d, of the electromagnets D, D in the wellknown manner,

a current of one polarity in the coils of said magnets causing repulsionto take place between the lever and the magnet D for'instance, andattraction between said lever and the magnet D, while a current of theopposite Y polarity causes thereverse action.

sameline circuit, preferably, with the coils of the magnets D, D and thearmature lever of said magnet H, is provided with a suitable retractorwhich is adjusted so that the armature will be drawn up only upon asufficient pause in the transmission of the alternating currents toallow the magnet to acquire a full charge, or, if desired, theadjustment may be made such that the armature can only be drawn up byincreasing the strength of the current of the last polarity sent overthe line. 11*, is the armature lever of this magnet which is pivoted ath, and is connected with an armature H which operates through said leverupon the press devices.

The press pad may be made in two parts G, G which are mounted togetherupon a sleeve turning upon a pivot G extending from the press lever HOne part G, of the press pad is that which operates with wheel A Whiletheother G operates with the wheel A. The. pads can be turned togetherso that one only will operate when the press lever is thrown out by thepress magnet. Their position is controlled by means of a positioncontrolling stop I, which is carried upon the vibratory lever O, and haspreferably two arms or projections i which are engaged by arms 1, whicharesecured to the sleeveor 0s,- cillatory part carrying the press padsG, G When the escapement lever is in one position the controlling stopI, will be thrown over so that one of said arms Z, will engage therewithwhen the press lever is thrown up and thereby swing the press padsaround so that one of them as, for instance, G, will operate. When theescapement lever O, is in the opposite position, the other arm Z, willengage with a projection on the controlling stop I,

and reverse the position of the press pad or printing device so that theother pad G will be swung around into position to print from the wheelA, as the press lever is thrown up carrying the press devices with it.The parts are so arranged that when the lever O, is in position to bringa type of the wheel A, into position for printing then when the presslever H is thrown up, the shifting mechanism will operate to bring thepad G so as to print from the wheel A, the parts being so arranged,however, that the shifting will take place before the pad reaches theposition for printing. Conversely when the lever O, is in the oppositeposition and a type of the wheel A, is in position for printing, theshifting mechanism will operate to throw the pad G into position.

25, is a spring which bears against a pin 26, secured to and oscillatingwith the shiftable press whereby the latter will be held in shiftedposition until forcibly moved to the other position.

The driving wheel B, is driven by a spring or weight which is kept woundor strained by the operation of the magnet H, which is in the main linecircuit with the escapement controlling magnet. I have in the presentcase illustrated the wheel B, as driven by means of a spring which iskept wound up or strained by the action of the magnet H. For thispurpose the armature lever which operates upon the press or printingdevices is provided with an arm or extension L, that operates upon awinding pawl L of any suitable construction which is hung from an arm Lpivoted to rotate freely on the shaft which carries the wheel D.

L is the winding drum or wheel engaged by the pawl L The actuatingspring indicated at M, has one end fixed to the shaft upon which thewheel B, rotates while its other end is fastened to the side of thewinding drum or wheel L On the inside of the drum or wheel L is aratchet wheel M which is engaged by a pawl M carried by the wheel B. Asthe spring uncoils the wheel M carries the pawl M and the wheel B,around, and thus supplies the power which tends to rotate the typewheels. The wheels B, and L, are both mounted to rotate freely on theshaft or spindle to which one end of the spring is secured. As the wheelB, is held from rotation when the escapement wheel is at rest the pawl Mcarried thereby and engaging with the wheel upon the winding drum willprevent the unwinding of the spring until the escapement lever moves topermit a tooth of the escapement wheel to pass. Pawl M therefore, servesas a retaining pawl and being placed upon the inside of the winding drumbetween the same and the wheel B, is protected from injury.

upper arm of the lever carries an adjustable stop L. The lower arm whichcarries the pawl L is engaged on its underside by the arm L, projectingfrom the press device.

The weight of the lower arm holds the pawl L out of engagement with thewheel L, a

distance dependent upon the adjustment of the stop L, so that the wheelmay rotate backward as the spring unwinds and thereby rotate the typewheel.

The spring should be normally set in the mechanism to have the necessarytension to apply the proper driving when the drum has been given' onewhole turn, said space will come opposite the driving pawl and thelatter when it moves up will fail to turn the wheel.

For a unison stop device I employ a stop lever 55, pivoted on a suitablesupport to swing in a vertical plane so as to move its free end 58, intoand out of positionwhere it {will be engaged by an arm or pin- 56,projecting from the type wheel. :kept normally raised so that the wheelmay The lever 55, is

revolve freely by resting upon the hub 57, or upon any other suitablesurface which rotates with the winding wheel or drum through The windingpawl is mounted upon a lever pivoted at L upon the lever L The IIO whichthe end of the actuating springis connected. This hub is cut away'asindicated in dotted lines Fig. 1, at one part of its periphery at apoint such that when the springhas run down to a greater or less extentthrough continued rotation of the type wheel without actuation of thewinding pawl, the lever 55, will be allowed to drop down so as to bringthe toe at its end 58, into position to be engaged by the stop pin 56.To bring the device to unison it is, therefore, only necessary tooperate the type wheel Without actuating the printing device, producinga half dozen more or less revolutions of such type wheels, or a numberof such revolutions sufficient to move the cut away portion of the hubunder the lever 55. During normal operation the spring is kept wound upand the winding drum is kept turned around to such position that thecut-away portion of the hub will not revolve to position where it willallow the lever 55, to drop.

The mechanism described is mounted in a suitable frame as indicated andas well' un-' derstood in the art.

The transmitter which supplies the alternate positive and negativeimpulses for rotating the type wheels and which prolongs the currentlast sent, whether the same be positive or negative, or increases thestrength thereof and stops the transmission of the alternating impulseswhen the keycorresponding to the character to be impressed is operatedmay be of any usual or proper character. The diagram Fig.8 illustrates acombination of apparatus which may be used for the purpose. In thediagram M, B, M, B are two sections of main battery the section M, B, ofwhich is employed in producing the rotation of the type wheel while thesection M, B is added to the firstfor the purpose of sending theincreased strength of current to operate the press magnet.

The keys of the transmitter are indicated by the numerals 5 6, threeonly'of such keys being shown and each being adapted when depressed tothrow in the section of battery M, B and at the same time complete thecircuit.

- of a stop magnet indicated at P, which oper- 6, connect to thesegments 8, of a sun-flower device the rotating circuit closing arm ofwhich is indicated at 9. The arm 9, suitably connects with a currentreversing commutator indicated at R, the rotating'segments of saidcurrent devices being connected respectively to the arm 9, and to oneterminal of the battery while the springs thereof connect respectivelyto line and to ground. This current reversing appliance rotates as iswell understood in the I art in unison with the arm 9, and reverses thecurrent for each movement of the arm 9, from one segment 8, to anadjoining segment. The keys 6, 6, which may be considered ascorresponding to the wheel A, of the transmitter connect toalternatesegments 8, or to those upon which the arms 9, rest when thepole changer will produce upon the line a polarity of current requisitefor'throwing the arm 6, so as to move a type of the wheel A, intoposition for printing. The keys 5, on' the other hand connect to theremaining segments 8, which alternate with those to which keys 6,connect, or in other words to those segments upon which the arm 9, restswhen the commutator sends over the line a current of the oppositepolarity or that which is required to bring a type of the wheel A, intoposition for printing. The commutator R, and the sun-flower device aremechanically connected so as to rotate in unison as well understood inthe art.

The commutator or pole changer B, mayhave any number of segments uponits revolving pole as Well understood and the relative number ofrevolutions of the arm 9, and said pole changer device, would obviouslydepend upon the number of reversals which will be produced by each wholerevolution of th pole changer or commutator. 1 1

The keys of the transmitter are each provided with stops 10, .by whichcircuit is normally closed between'the section'M, B, of the battery andthe segments of the sunflower.

The operation of the apparatus would be as followsz-The sunflowerapparatus being driven at any desired speed and the circuit of themagnet P, being broken so that the" stop devices will not interfere withthe free rotation of the mechanism, the section M, B, of the batterywill by means of the pole changer R, be caused -to send alternatingcurrents over the line, the connection of such battery withv the linenot being interrupted by the sunflower because all of the keys areconstantly connected to the battery and there is no interruption of thecircuitas the arm 9, passes from one segment to an adjoining segment. Bythis means, rapid alternations of current being produced on the line,the lever C,will rapidly vibrate and will permit the- R, occupies atsuchinstant, will flow over the line circuit and through the magnet P,the effect of which will be that the mechanism of the transmitterwill bebrought to rest on that section of the sunflower connected to the keydepressed and the alternations of current will cease. The type wheelswill therefore be brought to rest in the position corresponding to theposition which the lever O, occupies with that polarity of current whichis transmitted in increased amount. At the same time the magnet II, willacquire sufficient power to operate upon the press lever and the latterwill be thrown up with the effect of bringing the proper press pad intoposition to print from the wheel whose type is in position opposite thepress magnet. At the same time the pawl or Winding device will beoperated to Wind the actuating spring. When the transmitting keydepressed is released it will return to normal position by the usualretracting spring, the effect of which is to cut out the section ofbattery M, B and the stop magnet P, thus allowing the driving mechanismof the transmitter to continue the rotation of the sun-flower device andof the commutator or pole changer and the rotation of the typewheel inthe receiver to be resumed. At the same time the armature of the pressmagnet H, will recede ready for the next operation and the Winding pawlwill take a new position ready to wind the spring again at the nextimpression.

I am aware that it has been before proposed to employ in printingtelegraphs a printing mechanism the position of which should beautomatically controlled according to the wheel from which it is desiredto take the impression. I do not, therefore, claim the same broadly, butI do claim the controlling of the position of the shiftable printingmechanism by a device carried by the escapement lever which oscillatesand sets such devices into one position or the other according to thewheel to be printed from in which position it will be engaged by theshiftable printing devices which are actuated by the press lever.

In order to wind up the spring of the receiver whenit has run downthrough revolution of the type Wheel unattended by operation of theprinting pad, it. is only necessary to depress some key of thetransmitter and hold the same down until the transmit-ting mechanismcomes to rest after which the mechanism may, by any suitably hand-operated mechanical lock, be locked in position with the circuitcompleted through such key. Said key may then be operated any desirednumber of times Without any movement of the transmitting mechanism, polechanger and type wheel devices, and each depression of the key willproduce a movement of the press lever or other lever operated by theneutral magnet in the main line and thus actuate the winding pawl. Aftera sufficient number of operations of such key to fully rewind anysprings that may have run down, the mechanism may be unlocked and theapparatus will then operate in the ordinary manner for printing.

In order to bring the receiver or receivers into unison with one anotherand with the transmitter, it is only necessary to permit a continuedreversal of the current to take place sufficient to permit the windingspring to run down and allow the unison stop lever. to drop into thepath of the stop pin on the shaft of the type wheel in all of thereceivers. As these stop pins are placed at the same position on theshafts for all the receivers they will all be stopped at the same point.

The transmitter is brought into unison with the receivers by keeping theinstrument running until sufficient time to have all of them come tounison and then bringing the transmitter around to, for instance, A, orto Whatever letter the tickers are synchronized for.

What I claim as my invention is:-

1. The combination in a printing telegraph, of a vibrating escapementlever, two type wheels revolving together and controlled thereby, apress lever, a magnet in the line circuit with the type wheel magnet foractuating the same, a shiftable printing mechanism carried by said press1ever,,and a position controlling stop therefor carried by theescapement lever.

2. In a printing telegraph receivinginstrument, the combinationsubstantially as described, of two type wheels mounted to revolvetogether and having the characterson one arranged opposite the spaces onthe other, a polarized receiving magnet having a vibratory leveractuating the escapement for said wheels, a neutral magnet in the samemain line, a shit'table printing mechanism carried by the armature leverof said neutral magnet, and a position controlling device engagedthereby and oscillating withthe escapement lever.

3. The combination substantially as de scribed, in a printing telegraph,of a vibrat ing escapementlever, two type wheels revolving together andhaving the characters on one arranged opposite the spaces on the other,a press lever, a shiftable printing device carried thereby for printingfrom one wheel at a time, and a shifting stop or abutment thereforvibrating with the escapement lever.

4c. The combination substantially as described, of two type wheels, avibratory escapement thereforcarrying the position controlling stop forthe press device, a press lever having two pads mounted upon a swingingsupport, and an arm or arms connected to said swinging pads and adaptedto engage with the stop carried by the escapement lever.

5. The combination substantially as described, with a printing telegraphreceiver having two type wheels, of a polarized magnet controlling theescapement therefor, a press magnet in the line circuit with saidpolarized magnet, a shiftable printing mechanism actuated thereby, and aposition controlling device therefor carried by the escapement lever ofthe type wheel.

6. The combination substantially as described, with the press lever, ofthe two press pads G, G pivoted so as to oscillate in a plane parallelto the type wheels, a stop or stops carried by the escapement levers ofsaid type wheels, and an arm connected to said pads and adapted toengage with the stops when the press lever is actuated to print.

7. The combination, substantially as described, of the shiftableoscillating stop I, a vibratory armature lever operating the same andupon which the stop is mounted, a press lever, a pair of shiftable padsG, G mounted on the press lever and adapted to rock together, and thearms Z, connected with said pads and adapted to engage with the stop I,as and for the purpose described.

8. The combination in a printing telegraph, of a polarized escapementmagnet, a press magnet in circuit therewith and adapted to respond onlyto an increased current, a shiftable printing mechanism actuatedthereby, and a position controlling device carried by the escapementlever of the polarized electromagnet.

9. The combination in a printing telegraph, of a type wheel, anactuating spring therefor, a ratchet and pawl at one end of said spring,a winding device normally disconnected from the spring, and a pressmagnet having its armature lever connected to said winding device.

10. The combination in a printing telegraph, of the type wheel, anactuating spring therefor having one end fixed, a winding drum or wheel,an actuating pawl therefor normally disengaged from said drum or wheel,and a press magnet having a press armature lever connected to saidactuating pawl, as and for the purpose described.

11. The combination in a printing telegraph, of a type wheel, a drivingwheel therefor, an actuating spring one end of which is fixed, a windingdrum to which the other end is attached, a ratchet and pawl connectionbetween said winding drum and the'driving wheel, and a winding devicenormally disengaged from the drum and actuated by an electro-magnet inthe main line circuit.

12. In a printing telegraph receiver, the combination substantially asdescribed, of the winding drum and its actuating magnet, an actuatingpawl, and a pivoted supporting arm therefor hung upon a lever andprovidedwith an adjustable stop for limiting the movement of saidsupport upon the lever.

13. The combination substantially as described in a printingtelegraph,.of a winding pawl, a swinging support therefor engaged by theactuating device, and a pivoted arm carrying said support, as and forthe purpose described.

14. The combination substantially as described, with the winding drum,of the lever L the arm L pivoted thereon and having an adjustable stopL", a pawl carried by the arm L and an actuating arm engaging withweight, a ratchet and pawl connecting the same with said type wheel, aneutral press magnet in the main line, and a rewindlng mechanismnormally disconnected from the spring and operated by said press magnet.

16. The combination in a printing telegraph, of two type wheels mountedto rotate together, a polarized escapement magnet, an actuating springor weight for said type wheel, a press magnet, a rewinding deviceactuated thereby, and a shiftable press mechanism the position of whichis controlled by the position of the escapement lever for the typewheel, as and for the purpose described.

17. The combination, substantially as described, of a pair of typewheels mounted to rotate together, a polarized escapement magnet, aneutral press magnet, a shiftable printing mechanism actuated therebyfor printing from one or the other of said wheels at pleasure, anactuating spring or weight for supplying'the power constantly tending torotate the type wheels, and a rewinding mechanism therefor actuated bysaid neutral press magnet, but normally disconnected from the spring,and a ratchet and pawl at one end of the spring for holding whilethe'said mechanism is disconnected.

18. In a printing telegraph receiver, the combination substantially asdescribed, of a unison stop lever, a driving spring or weight, and a camor hub connected with said spring and serving to normally hold theunison lever out of position for engagement by the unison stop.

19. The combination substantially as described, in a printing telegraphreceiver, 'of I the winding drum or wheel,,the unison lever resting onthe hub thereof which is cut away at one point, and a stop pin orprojection from the type wheel shaft.

20. In a printing telegraph receiver, the combination, substantially asdescribed, of the driving spring or weight, the winding wheel, a ratchetand pawl connection between the same and the type wheel driving wheel,and a unison stop device the movable lever or stop member of which isnormally held out of stop or unison position by a cam or hub rotatingwith the winding wheel.

Signed at New York, in the county of New York and State of New York,this 28th day of September, A. D. '1891.

MAJOR DANE PORTER. Witnesses:

WM. H. CAPEL, T. F. CONREY.

